Code Lyoko (2003)

S01E09 Satellite

As every student's cell phone blares during class, Sissy is inspired to launch a petition to protect her own device. However, things take a turn when Odd decides to break into the school's office to retrieve his, Ulrich's, and Yumi's phones. Meanwhile, X.A.N.A. has its sights set on commandeering a powerful military satellite orbiting the Earth, and the primary targets are none other than our heroes.